Buggy code:
public TypeDeclaration convert ( ASTNode [ ] nodes ) { } public Expression convert ( BinaryExpression expression ) { } public Block convert ( org . eclipse . jdt . internal . compiler . ast . Block statement ) { } public BreakStatement convert ( org . eclipse . jdt . internal . compiler . ast . BreakStatement statement ) { } public SwitchCase convert ( CaseStatement statement ) { } public CastExpression convert ( org . eclipse . jdt . internal . compiler . ast . CastExpression expression ) { } public CharacterLiteral convert ( CharLiteral expression ) { } public Expression convert ( ClassLiteralAccess expression ) { } public CompilationUnit convert ( CompilationUnitDeclaration unit , char [ ] source ) { try { if ( ( unit . compilationResult . recoveryScannerData ) != null ) { RecoveryScanner recoveryScanner = new RecoveryScanner ( this . scanner , unit . compilationResult . recoveryScannerData . removeUnused ( ) ) ; this . scanner = recoveryScanner ; this . docParser . scanner = this . scanner ; } this . compilationUnitSource = source ; this . compilationUnitSourceLength = source . length ; this . scanner . setSource ( source , unit . compilationResult ) ; CompilationUnit compilationUnit = new CompilationUnit ( this . ast ) ; compilationUnit . setStatementsRecoveryData ( unit . compilationResult . recoveryScannerData ) ; int [ ] [ ] comments = unit . comments ; if ( comments != null ) { buildCommentsTable ( compilationUnit , comments ) ; } if ( this . resolveBindings ) { recordNodes ( compilationUnit , unit ) ; } if ( ( unit . currentPackage ) != null ) { PackageDeclaration packageDeclaration = convertPackage ( unit ) ; compilationUnit . setPackage ( packageDeclaration ) ; } ImportReference [ ] imports = unit . imports ; if ( imports != null ) { int importLength = imports . length ; for ( int i = 0 ; i < importLength ; i ++ ) { compilationUnit . imports ( ) . add ( convertImport ( imports [ i ] ) ) ; } } TypeDeclaration [ ] types = unit . types ; if ( types != null ) { int typesLength = types . length ; for ( int i = 0 ; i < typesLength ; i ++ ) { TypeDeclaration declaration = types [ i ] ; if ( CharOperation . equals ( declaration . name , TypeConstants . PACKAGE_INFO_NAME ) ) { continue ; } ASTNode type = convert ( declaration ) ; if ( type == null ) { compilationUnit . setFlags ( ( ( compilationUnit . getFlags ( ) ) | ( ASTNode . MALFORMED ) ) ) ; } else { compilationUnit . types ( ) . add ( type ) ; } } } compilationUnit . setSourceRange ( unit . sourceStart , ( ( ( unit . sourceEnd ) - ( unit . sourceStart ) ) + 1 ) ) ; int problemLength = unit . compilationResult . problemCount ; if ( problemLength != 0 ) { CategorizedProblem [ ] resizedProblems = null ; final CategorizedProblem [ ] problems = unit . compilationResult . getProblems ( ) ; final int realProblemLength = problems . length ; if ( realProblemLength == problemLength ) { resizedProblems = problems ; } else { System . arraycopy ( problems , 0 , ( resizedProblems = new CategorizedProblem [ realProblemLength ] ) , 0 , realProblemLength ) ; } ASTSyntaxErrorPropagator syntaxErrorPropagator = new ASTSyntaxErrorPropagator ( resizedProblems ) ; compilationUnit . accept ( syntaxErrorPropagator ) ; ASTRecoveryPropagator recoveryPropagator = new ASTRecoveryPropagator ( resizedProblems , unit . compilationResult . recoveryScannerData ) ; compilationUnit . accept ( recoveryPropagator ) ; compilationUnit . setProblems ( resizedProblems ) ; } if ( this . resolveBindings ) { lookupForScopes ( ) ; } compilationUnit . initCommentMapper ( this . scanner ) ; return compilationUnit ; <START_BUG> } catch ( RuntimeException e ) { <END_BUG> StringBuffer message = new StringBuffer ( "Exception<seq2seq4repair_space>occurred<seq2seq4repair_space>during<seq2seq4repair_space>compilation<seq2seq4repair_space>unit<seq2seq4repair_space>conversion:" ) ; String lineDelimiter = Util . findLineSeparator ( source ) ; if ( lineDelimiter == null ) lineDelimiter = System . getProperty ( "line.separator" ) ; message . append ( lineDelimiter ) ; message . append ( "-----------------------------------<seq2seq4repair_space>SOURCE<seq2seq4repair_space>BEGIN<seq2seq4repair_space>-------------------------------------" ) ; message . append ( lineDelimiter ) ; message . append ( source ) ; message . append ( lineDelimiter ) ; message . append ( "-----------------------------------<seq2seq4repair_space>SOURCE<seq2seq4repair_space>END<seq2seq4repair_space>-------------------------------------" ) ; Util . log ( e , message . toString ( ) ) ; throw e ; } } public Assignment convert ( CompoundAssignment expression ) { } public ConditionalExpression convert ( org . eclipse . jdt . internal . compiler . ast . ConditionalExpression expression ) { } public ContinueStatement convert ( org . eclipse . jdt . internal . compiler . ast . ContinueStatement statement ) { } public DoStatement convert ( org . eclipse . jdt . internal . compiler . ast . DoStatement statement ) { } public NumberLiteral convert ( DoubleLiteral expression ) { } public EmptyStatement convert ( org . eclipse . jdt . internal . compiler . ast . EmptyStatement statement ) { } public EnumConstantDeclaration convert ( FieldDeclaration enumConstant ) { } public Expression convert ( EqualExpression expression ) { } public Statement convert ( ExplicitConstructorCall statement ) { } public Expression convert ( Expression expression ) { } public StringLiteral convert ( ExtendedStringLiteral expression ) { } public BooleanLiteral convert ( FalseLiteral expression ) { } public Expression convert ( FieldReference reference ) { } public NumberLiteral convert ( FloatLiteral expression ) { } public Statement convert ( ForeachStatement statement ) { } public ForStatement convert ( org . eclipse . jdt . internal . compiler . ast . ForStatement statement ) { } public IfStatement convert ( org . eclipse . jdt . internal . compiler . ast . IfStatement statement ) { } public InstanceofExpression convert ( InstanceOfExpression expression ) { } public NumberLiteral convert ( IntLiteral expression ) { }

Fix:
} catch ( IllegalArgumentException e ) {